diff options
Diffstat (limited to 'lib/util/warn.c')
| -rw-r--r-- | lib/util/warn.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/util/warn.c b/lib/util/warn.c new file mode 100644 index 0000000..504f935 --- /dev/null +++ b/lib/util/warn.c @@ -0,0 +1,75 @@ +/*- + * Copyright 2009 Colin Percival + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file was originally written by Colin Percival as part of the Tarsnap + * online backup system. + */ +#include "scrypt_platform.h" + +#ifdef HAVE_ERR_H +/* + * Everything is provided through err.h and the associated library, so we + * don't need to do anything here. + */ +#else +#include <errno.h> +#include <stdarg.h> +#include <stdio.h> +#include <string.h> + +#include "warn.h" + +const char * warn_progname = "(null)"; + +void +warn(const char * fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + fprintf(stderr, "%s", warn_progname); + if (fmt != NULL) { + fprintf(stderr, ": "); + vfprintf(stderr, fmt, ap); + } + fprintf(stderr, ": %s\n", strerror(errno)); + va_end(ap); +} + +void +warnx(const char * fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + fprintf(stderr, "%s", warn_progname); + if (fmt != NULL) { + fprintf(stderr, ": "); + vfprintf(stderr, fmt, ap); + } + fprintf(stderr, "\n"); + va_end(ap); +} +#endif |